Gordon Legge, Ph.D.

Professor, Department of Psychology

E-MAIL: legge@umn.edu

Professor Legge's Homepage

Research Interests:

My research deals with visual perception and cognition. Currently, projects in my lab focus on the roles of vision in reading, object recognition, and spatial navigation. In all of these areas, I have a special interest in the problems encountered by people with low vision.

My lab has been widely recognized for applying the principles and methods of basic visual science to explain the difficulties encountered by people with low vision. One practical outcome of our research is the development of the MNREAD Acuity Chart, designed for use in normal and low vision.

Other areas of my research include studies of binocular vision (including stereopsis) and contrast coding.

Selected Publications:

(For a comprehensive list of recent publications, refer to PubMed, a service provided by the National Library of Medicine.)

Yu D, Legge GE, Wagoner G, Chung ST. Sensory factors limiting horizontal and vertical visual span for letter recognition. J Vis. 2014 Sep 3;14(6):3.

Subramanian A, Legge GE, Wagoner GH, Yu D. Learning to read vertical text in peripheral vision. Optom Vis Sci. 2014 Sep;91(9):1097-105.

Wang H, He X, Legge GE. Effect of pattern complexity on the visual span for Chinese and alphabet characters. J Vis. 2014 Jul 3;14(8):6.

Legge GE. Prentice medal lecture 2013: visual accessibility: a challenge for low-vision research. Optom Vis Sci. 2014 Jul;91(7):696-706.

Qin X, Bochsler TM, Aizpurua A, Cheong AM, Koutstaal W, Legge GE. Incidental memory of younger and older adults for objects encountered in a real world context. PLoS One. 2014 Jun 18;9(6):e99051.

Legge GE, Beckmann PJ, Tjan BS, Havey G, Kramer K, Rolkosky D, Gage R, Chen M, Puchakayala S, Rangarajan A. Indoor navigation by people with visual impairment using a digital sign system. PLoS One. 2013 Oct 8;8(10):e76783.

He Y, Legge GE, Yu D. Sensory and cognitive influences on the training-related improvement of reading speed in peripheral vision. J Vis. 2013 Jun 24;13(7):14.

Kwon M, Legge GE. Higher-contrast requirements for recognizing low-pass-filtered letters. J Vis. 2013 Jan 9;13(1):13.

Bochsler TM, Legge GE, Gage R, Kallie CS. Recognition of ramps and steps by people with low vision. Invest Ophthalmol Vis Sci. 2013 Jan 9;54(1):288-94.

Kallie CS, Legge GE, Yu D. Identification and detection of simple 3D objects with severely blurred vision. Invest Ophthalmol Vis Sci. 2012 Dec 5;53(13):7997-8005.

Bochsler TM, Legge GE, Kallie CS, Gage R. Seeing steps and ramps with simulated low acuity: impact of texture and locomotion. Optom Vis Sci. 2012 Sep;89(9):E1299-307.

Kwon M, Legge GE. Spatial-frequency requirements for reading revisited. Vision Res. 2012 Jun 1;62:139-47.

Kwon M, Legge GE. Spatial-frequency cutoff requirements for pattern recognition in central and peripheral vision. Vision Res. 2011 Sep 15;51(18):1995-2007. Epub 2011 Aug 9.

Legge GE, Bigelow CA. Does print size matter for reading? A review of findings from vision science and typography. J Vis. 2011 Aug 9;11(5).

Legge GE, Yu D, Kallie CS, Bochsler TM, Gage R. Visual accessibility of ramps and steps. J Vis. 2010 Sep 1;10(11):8.

Liu, T., Cheung, S.-H., Schuchard, R.A., Glielmi, C.B., Hu, X., He, S. & Legge, G.E. (2010). Incomplete cortical reorganization in macular degeneration. Investigative Ophthalmology & Visual Science.

Lee, H.-W., Kwon, M., Gefroh, J. G. & Legge, G.E. (2010). Training improves reading speed in peripheral vision: is it due to attention? Journal of Vision, 10(6): 18, 1-15. http://www.journalofvision.org/content/10/6/18

Kalia, A.A., Legge, G.E., Roy ,R. & Ogale, A. (2010). Assessment of indoor route finding technology for visually-impaired people. Journal of Visual Impairment and Blindness, 104, 135-147.

Cheung, S.-H., Fang, F., He, S. & Legge, G.E. (2009). Retinotopically-specific reorganization of visual cortex for tactile pattern recognition. Current Biology, 19, 596-601.

Kwon, M., Legge, G.E., Fang, F., Cheong, A.M.Y. & He, S. (2009). Adaptive changes in visual cortex following prolonged contrast reduction. Journal of Vision, 9(2):20, 1-16. http://www.journalofvision.org/9/2/20/Kwon-2009-jov-9-2-20.pdf

Legge G.E., Madison C., Vaughn B.N., Cheong A.M.Y. & Miller J.C. (2008). Retention of high tactile acuity throughout the lifespan in blindness. Perception and Psychophysics, 70, 1471-1488.

Gordon Legge